Attestia is the compliance audit trail for LLM apps. We wrap every model call, verify each claim against your own sources with a panel of independent judges, and seal the result as tamper-evident, auditor-ready evidence.
A raw prompt-and-response log shows what the model said — not whether it was true, who checked it, or that the record hasn't been edited since.
In regulated workflows a single contradicted claim is a clinical, legal, or financial incident. You need it caught before it ships, not discovered in an audit.
Assembling a defensible trail after the fact takes weeks of screenshotting and spreadsheet archaeology — and still leaves gaps an auditor can drive through.
Attestia sits between your app and any LLM provider. Every call is verified, scored, and sealed — then made provable to anyone, without them trusting us.
Every factual claim in a response is extracted and checked against your registered sources — with an exact span, quote, and similarity score behind each verdict.
Extract · match · scoreThree independent models vote on each claim. We report inter-judge agreement as a calibrated Cohen's κ — so a verdict is a consensus, not one model's opinion.
3 judges · κ agreementEach trace is signed Ed25519 and anchored to a daily public bulletin. Change one byte and the chain breaks — visibly, to any auditor, forever.
Signed · chain-anchoredWrite policies in plain terms — verify with N judges, block on contradiction, route partials to human review, page the right channel. The first blocking match wins, evaluated in order, before the response ever reaches your app.
Generate an auditor-ready bundle for any date range in one click — every verified call, verdict mix, and signature, sealed as a portable, offline-verifiable file.
One click · portableWatch verifications stream in real time across every wrapped app — per-minute throughput, verdict mix, p95 latency, and sandbox health, all in one glance.
Real-time streamShare a read-only link. Your auditor opens it without an account, replays any trace, and verifies signatures offline — no trust in Attestia required.
No login · offline-verifiableChange one line at the call site. Attestia does the rest — synchronously, in under two seconds at p95.
Point your existing OpenAI, Anthropic, or Google call at Attestia. PII is redacted before it reaches any model.
Claims are extracted, matched to your sources, and voted on by three independent judges in parallel.
The verified trace is signed Ed25519 and anchored to the day's public bulletin. Immutable from that moment.
Export an evidence pack or share a portal link. Anyone can verify it offline, without trusting us.
Every claim resolves to exactly one verdict, applied consistently from the live monitor to the sealed evidence pack an auditor reads two years later.
Independently corroborated by a registered source. Allowed and sealed.
Weak or incomplete support. Routed to human review before it ships.
No registered source matches. Warned and sealed, flagged for a source gap.
A source directly refutes the claim. Blocked at the boundary — it never ships.
Everything a regulated AI team needs to run the verification loop end to end — and hand a clean binder to an auditor when they knock.
Step through any call — inbound, redaction, model, extraction, verdicts, seal — exactly as it happened.
Pre-built regulator views with verdict drift over time and drill-down by app or framework.
Run a live engagement with external auditors — requests, evidence, sign-off, all on the chain.
Pin builds, track calibration, run shadow candidates against live traffic before you promote.
Paste a prompt and draft answer and watch the whole chain respond — nothing billed, nothing sealed.
Chain-anchored write-ups with blast radius, timeline, root cause, and tracked remediations.
You don't have to trust Attestia — that's the point. Every guarantee we make is one an auditor can check for themselves, offline, without our help.
Every trace and reviewer decision is signed. The public key is yours to share; verification needs nothing from us.
Each day's traces are Merkle-anchored to a public bulletin. Retroactive edits are cryptographically impossible to hide.
HIPAA identifiers are redacted with deterministic surrogates before any call leaves your boundary — and the mapping is one-way.
We're onboarding regulated teams in cohorts. Join the waitlist to start your evidence chain before your next audit — not during it.